Using a patented indicator that resists interference from monochloramines, the SenSafe Free Chlorine Water Check test strip also boasts the honor of becoming the first test strip to ever get approved by the USEPA.

The original recommendation letter, dated October 2003, from the USEPA stated, "We believe that the ITS test strips will provide the regulatory community with a valuable option for monitoring free chlorine levels in drinking water." -- view the full letter

The SenSafe Free Chlorine Water Check has all its reagents packed securely on its test pad... making it an ideal replacement for testing with DPD-1, a compound typically purchased in liquid, tablet, reagentstrip, or powder form.

The Importance of Free Chlorine Testing

In many water systems, both public and private, the free chlorine residual (level) does the hard work when it comes to keeping potentially harmful -- and definitely unwanted -- biological contaminants from breeding in the water supply.

Water treatment plant operators routinely test chlorine levels in the water they produce to make sure those levels remain in compliance with EPA, State and Local mandates but do you know how many miles of piping tap water must pass through before it gets to your faucet?

Periodic testing of the free chlorine levels in your water will help ensure that your water contains the correct level.